Sheet conveying apparatus, image forming apparatus, and image reading apparatus

Active Publication Date: 2009-12-03
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0021]Accordingly, before the driven rotation body is brought into the pressure contact with the driving rotation body, the holding portion or the driven rotation body is caused to abut on the abutment portion to reduce th

Problems solved by technology

However, the mechanical link mechanism becomes complicated and a huge amount of time is required for the adjustment, which results in large cost increase.
Therefore, it is

Method used

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  • Sheet conveying apparatus, image forming apparatus, and image reading apparatus
  • Sheet conveying apparatus, image forming apparatus, and image reading apparatus
  • Sheet conveying apparatus, image forming apparatus, and image reading apparatus

Examples

Experimental program
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Example

[0043]An exemplary embodiment of the invention will be described in detail with reference to the drawings.

[0044]FIG. 1 schematically illustrates a printer that is of an example of an image forming apparatus including a sheet conveying apparatus according to an embodiment of the invention.

[0045]Referring to FIG. 1, a printer 1000 includes a printer main body 1001 and a scanner 2000 provided on the top of the printer main body 1001.

[0046]The scanner 2000 that reads the original includes a scanning optical system light source 201, a platen glass 202, and an original platen 203 that is opened and closed. The scanner 2000 also includes an image reading portion 2001. The image reading portion 2001 includes a lens 204, a light-receiving element (photoelectric conversion element) 205, an image processing portion 206, and a memory portion 208. An image processing signal processed by the image processing portion 206 is stored in the memory portion 208.

[0047]In reading the original, the origin...

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PUM

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Abstract

An aspect of the invention provides a sheet conveying apparatus, an image forming apparatus, and an image reading apparatus, in which generation of skew feeding caused by the shock in pressure contact of a rotation body can be reduced. An interlocking mechanism brings a driven roller 222 biased by a biasing member into pressure contact with a feeding portion 221c of a driving roller 221 in conjunction with rotation of the driving roller 221. The driving roller 221 includes a non-feeding portion 221d in a circumferential surface thereof. The driven roller 222 is caused to abut on a pressure holder 225 before the driven roller 222 moved in a direction in which the interlocking mechanism brings the driven roller 222 into the pressure contact with the driving roller 221 is brought into the pressure contact with the driving roller 221.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a sheet conveying apparatus, an image forming apparatus, and an image reading apparatus, particularly to a configuration for correcting skew feeding and crosswise misalignment of a sheet, such as recording paper and an original, which is conveyed to an image forming portion or an image reading portion.[0003]2. Description of Related Art[0004]Conventionally, the image forming apparatus and image reading apparatus such as a copying machine, a printer, and a facsimile include a sheet conveying apparatus that conveys the sheet such as the recording paper and original to the image forming portion and image reading portion. Sometimes the sheet conveying apparatus includes a skew feeding correction portion that corrects the skew feeding of the sheet and a displacement of the sheet in a direction orthogonal to a sheet conveying direction (hereinafter, referred to as crosswise direction) in order...

Claims

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Application Information

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IPC IPC(8): B65H9/00
CPCB65H9/006B65H2403/512B65H2801/06B65H2404/1442B65H2404/1411
Inventor INOUE, HIROSHIGE
Owner CANON KK
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